Susanna Ross
From the Super Mario Wiki
Susanna Ross is, as described by Luigi, the queen of glitz and glammour, and an apparently famous singer and dancer.
In The Super Mario Bros. Super Show! episode "Baby Mario Love", Susanna Ross appeared in Mario Brothers Plumbing while Luigi and Mario were discussing how their lives lacked glitz and glammer. Knocking on the door of Mario Brothers Plumbing, Susanna was at first almost unnoticed by Luigi, who slammed the door in her face; realizing what he had done, Luigi quickly re-opened the door and apologized to Susanna while greeting her. Aside from a sore nose, Susanna was alright and greeted both Luigi and Mario and asked if they remembered the promised they made when they fixed her plumbing, that they would always be there for her in an emergency. Taking in a heavy suitcase, Susanna revealed that the rest of her singing group had missed their flight, and, as she put wigs on Mario and Luigi's heads, asked them if they could sing. Replying they could, Mario and Luigi began to sing terribly, which caused Susanna to simply say that Mario and Luigi can fake their way through singing.
Later, as Mario and Luigi put on their singing outfits, Susanna has to coach them through putting on the clothing, which Mario and Luigi are having trouble doing. Eventually, Mario and Luigi finish putting on their costumes, comprised of dresses and wigs, and ask Susanna how they look, a question which causes Susanna to sarcastically reply that she thinks her career is over.
Eventually, Susanna, Mario and Luigi decide to practice their performance, and, stepping on to the raised floor of the apartment begin to sing and dance to the song Baby Love. While nearing the end of the song, Susanna is interrupted by Mario and Luigi, her backup dancers, who begin to complain about their outfits. Susanna is left looking dumbstruck as Mario and Luigi begin to point-out various flaws in the costumes.
